5621525 has 36 divisors (see below), whose sum is σ = 8757252. Its totient is φ = 3548160.

The previous prime is 5621513. The next prime is 5621597. The reversal of 5621525 is 5251265.

It can be written as a sum of positive squares in 6 ways, for example, as 790321 + 4831204 = 889^2 + 2198^2 .

It is not a de Polignac number, because 5621525 - 2¹⁶ = 5555989 is a prime.

It is a Curzon number.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 5621494 and 5621503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15749 + ... + 16101.

It is an arithmetic number, because the mean of its divisors is an integer number (243257).

Almost surely, 2^5621525 is an apocalyptic number.

It is an amenable number.

5621525 is a deficient number, since it is larger than the sum of its proper divisors (3135727).

5621525 is a wasteful number, since it uses less digits than its factorization.

5621525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 378 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 5621525 is about 2370.9755376216. The cubic root of 5621525 is about 177.8080348530.

The spelling of 5621525 in words is "five million, six hundred twenty-one thousand, five hundred twenty-five".